Pipe-forming apparatus.



G. M. MYERS.

PIPE FORMING APPARATUS.

APPLICATION FILED JAN. 18, 1910.

Patented Jan. 23, 1912.

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WITNESSES CDLUMBIA PLANDGRAIH'IZO-IWASHINGTON. n r,

- G. M. MYERS.

PIPE FORMING- APPARATUS.

APPLICATION IIILED 1m. 1a, 1910.

Patented Jan. 23, 1912.

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zontal section on the line IIIIII,,Fig. 1,

' togetherto form complete pipes; 15

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PIPE-FORMING APPARATUS.

To all whom it may concern:

Be it known that I, GEORGE MYERS, a citizen of the United States, residing at T0- ronto, in the county of J eifersonand State of Ohio, have invented or discovered new and useful Improvements in Pipe-Form ng.

Apparatus,- of which thefollowing is a specification. v

My invention relates to apparatus for forming pipe fromclay or similar material, and more particularly to apparatus "for forming the halves of Us and Ss, whichv are subsequent to their formation Heretofore, it has been the practice to shape the halves of Us, Ss, andthe like in coreless plaster of Paris molds by hand, this process beingvery slow and expensive. A skilled molder could form only about sixty sections or halves a day,-by this oldhand method, whereas-by my improvements a single machine can make a thousand or'more a day. Such hand-made halves were-more or less rough and heterogeneous while the machine-made parts are smooth and homogeneous. In'the preferred form of myin- .vention, I make two halves simultaneously and as soon as they are taken from the molds, their edges are moistened and the halves are matched so as to make a complete pipe, this matching being' performed the same as in the hand method.

Referring to the accompanying drawing,-

which illustrates the preferred formof my invention, Figure 1: is anelevation thereof,

the central part being-broken away to show the interior; Fig. 2, a vertical'sect-ion taken on the line IIII,-Fig. 3; Fig. 3, a hOI'l',

Fig. 4:, an elevation, the lower part showing ya vertical section on the line IVIV, Fig.

2; and article.

On the drawings, 1 represents a ring or hopper in which the clay to be molded is deposited and from which it is forced in any desired manner as bythe plunger .2, shown in dotted lines on-Fig.; 1, into the supple- Fig. 5, a-perspective of a molded mental ring or hopper-3, which contains a vertical wedge-shaped partition et with its sides 5 converging in the line 6 at or near the top of the supplementalhopper, At the bottom of the supplemental hopper 3 are two parallel extensions- Z and 8. These extensions 7 and 8 are vertical plates, lying beneath diametrically opposite portions of Specification of Letters Patent.

Application fi led January 18,- 1910.

a shapeto-f.the bell or joined shaped and has its longitudinal,edges seat ed against the outer faces of the extensions 1 7 and 8, and its bodyv arranged parallel to the maleydie member 9 and spaced there the hinge-pins 19.

Patented Jan. 23, 1912. SeriaI 'No. 538,755.

the'hopper or ring 3 and projecting downwardly and forwardly corresponding to the general shape of they pipe to be made. The outer vertical faces of the extensions are each provided with a rib or male die member,

9 integral therewith, portions of thefexteiijsions at the sides of the rib 9 constituting the stationary base, for shaping. the"longitudinal edges of the halves of the pipe. The

outer ends of the ribsor die members 9 are enlarged, "as at 10, to correspond to socket ofthe pipe:

The female die-member 11 is troughfromthe thickness of the wall of the pipe which it is desired to make. Theouter .end offthe die-:11 hasthe end wall 12 which closesthe end of the molding space between the die membersand fits against the outer it ends of the socket-forming member 10; The;

ends 12 carry pivoted latches 13 having the hooks 14%. toengage behind the outer end i of the extensions 7 and 8 to lock ,the mem-v bers of the die together. The expansion springs located between the latches and the ends 12 tend to hold the latches in locking position,;as shown at the left-hand sideof ;Fig.-3. 1 The upper edges of the extensions Y and 8" support pivoted spring-pressed latches 15*, which engage thelugslti'onthe I die members 'll toassist iniholdingthe lat- '90 ter tightly together. The rear of the ring or =.hopper 3 supports the lugs or hinge-memberslT-to which the lugs or hinge-members 18 onthe diemembers 11 are The two spaces at opposite csides of the wedge or partition 4 converge downwardly and lead to the upper ends of the spaces be- 'tween thedie-members 9 and 11, as drawn in Figs. 1 and 2. The die members being locked by thelatches 1 3 and. 15, theclay in the hoppersor rings 1 and 3 is forced down into the ,molding spaces between the ;said

die members where it is formed into thetwo halves which, when united in the usual manconnected by J ner, will form a complete L-pipe. The ar- 1 t-icles are indicated by the numeral 2Q lVhen the die has been entirely filled with clay, the die-"members are unlocked and the die membersll are swung out as indicated in Fig. 3 by full lines at the right-hand side; and by dotted lines at the left-hand side.

The molded articles after being cut by a knife or other sharp tool from the material remaining above the top of the die member 1.1 are then removed, their edges moistened, and matched as hereinbefore stated, Whereupon a completely-shaped pipe is formed ready for drying and burning.

I do not limit myself to the precise shape of the dies, as articles of various shapes may be made, nor do I limit myself to any definite number of dies.

I claim- -In an apparatus for molding half-tubes, a hopper, a plunger operable in the upper end thereof, a partition dividing the lower end of the hopper below the plunger into lateral portions, a die connected to the bottom of each of the lateral portions of the hopper, each die having a fixed vertical base member with a convex portion, and a hinged concave member having its edges resting on the base portion, and a latch carried by each hinged member and adapted to catch over the edges of the base member, the two dies being parallel and close together, whereby they may be formed simultaneously and readily joined by their edges to form pipes.

Signed at Pittsburgh, Pa, this 10th day of January, 1910.

GEORGE M. MYERS.

WVitnesses: I

F. N. BARBER, SUZANNE S. BEATTY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G. 

